The Search for a Permanent Electric Dipole Moment
作者:
Norval Fortson,
Patrick Sandars,
Stephen Barr,
期刊:
Physics Today
(AIP Available online 1903)
卷期:
Volume 56,
issue 6
页码: 33-39
ISSN:0031-9228
年代: 1903
DOI:10.1063/1.1595052
出版商: AIP
数据来源: AIP
摘要:
Half a century ago, Edward Purcell and Norman Ramsey initiated a search for an electric dipole moment (EDM) of the neutron and obtained what was considered at the time a remarkably precise result, consistent with zero. Thus began a long line of ever more sensitive EDM experiments on neutrons, atoms, and molecules. Although no EDM has yet been found, the limits set have had decisive influences on elementary particle theories. Now, experiments under way or being planned may at last find an EDM and, in any event, are expected to have a far‐reaching impact on theoretical particle physics.
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